C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Blinking light on my AC controls

Thread Tools
 
Search this Thread
 
Old Jan 24, 2003 | 01:58 PM
  #1  
92TripleBlack's Avatar
92TripleBlack
Thread Starter
Safety Car
 
Joined: Jul 2001
Posts: 4,178
Likes: 2
From: Windermere FL
Default Blinking light on my AC controls

My climate controls are blinking for the first minute the car is on. I looked in the owner's manual and it says to have the AC system serviced. Any way for me to find out what is causing this without a diagnosis computer? The heat works fine. Could it be the AC needs charging? Its never been touched as a system for as long as I've owned it (6 years).
Thanks :skep:
Reply
Old Jan 24, 2003 | 02:31 PM
  #2  
85vetteguy's Avatar
85vetteguy
Drifting
20 Year Member
 
Joined: Jun 2001
Posts: 1,490
Likes: 17
From: Darlington, MD
Default Re: Blinking light on my AC controls (92TripleBlack)

I think I remember reading in the owners man. that it meant low freon. I would charge it up and see if it stops blinking. Guy
Reply
Old Jan 24, 2003 | 06:48 PM
  #3  
don hall's Avatar
don hall
Safety Car
20 Year Member
 
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Default Re: Blinking light on my AC controls (92TripleBlack)

Push and hold the fan "up" arrow and fan "down" arrow at the same time for 5 seconds.
The LCD will show "00". Push "AUTO FAN" and the LCD will show any fault DTCs stored:
09=low freon, etc. If there are other codes, post them, and I will help you.
Reply
Old Jan 24, 2003 | 10:18 PM
  #4  
92TripleBlack's Avatar
92TripleBlack
Thread Starter
Safety Car
 
Joined: Jul 2001
Posts: 4,178
Likes: 2
From: Windermere FL
Default Re: Blinking light on my AC controls (Oldman)

:thumbs:
Thanks Oldman. I'll try that tomorrow. If it is low freon, I'm hoping that this is because its been so long and not a leak. Does that sound reasonable?
Thanks again
Reply
Old Jan 25, 2003 | 10:31 AM
  #5  
don hall's Avatar
don hall
Safety Car
20 Year Member
 
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Default Re: Blinking light on my AC controls (92TripleBlack)

...... If it is low freon, I'm hoping that this is because its been so long and not a leak.
If you have a low freon code, you have a leak. Seals dry out and deteriorate over time.
This is a problem that can be solved with money. The system will be evacuated, tested for leaks, seals replaced, if necessary, and refilled with R12 (expensive). (maybe $300)

An alternative is converting to R134. There are TECH TIPS on this conversion. Supposedly, R12 is a superior refrigerant, but many owners are satisfied with R134.


[Modified by Oldman, 7:35 AM 1/25/2003]
Reply
Old Jan 25, 2003 | 11:02 AM
  #6  
Rick92's Avatar
Rick92
Pro
15 Year Member
 
Joined: Feb 2002
Posts: 610
Likes: 0
From: Mi
Default Re: Blinking light on my AC controls (92TripleBlack)

When mine did that it was the compressor, over a thousand to repair.
Reply
Old Jan 27, 2003 | 03:37 AM
  #7  
C490Vette's Avatar
C490Vette
Instructor
 
Joined: Jan 2002
Posts: 227
Likes: 0
From: CA
Default Re: Blinking light on my AC controls (92TripleBlack)

I have had the same problem with my 1990. I checked the DTC and there it was, error code 09. Fortunatly the vette is going into the shop tomorrow and I will have them check it out. Thanx for the info!!

:D
Reply
Old Jan 27, 2003 | 09:31 AM
  #8  
c4cruiser's Avatar
c4cruiser
Team Owner
20 Year Member
Veteran: Army
 
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Default Re: Blinking light on my AC controls (92TripleBlack)

I had an 09 code set a couple of years ago. When I took the car in for service, the tech told me to make sure I ran the A/C system at least once a month. That way the refridgerant and oil will circulate in the sysem keeping the seals in good shape. The compressor will run in cooling mode when the outside ambient air is (I think!) above 50 degrees. You can probably run the deftoster mode, too. I now use the "Auto" button all the time instead of using the other buttons.

I'm thinking about R134a this spring as I know that the R12 supply is getting expensive. My 99 Silverado has R134a in it and it takes a lot longer to get cool inside than earlier trucks I've owned. I wouldn't think that would be a problem in Vettes as the interior cabin is so much smaller.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 27, 2003 | 09:53 AM
  #9  
PTz-92-LT1's Avatar
PTz-92-LT1
Racer
 
Joined: Apr 2002
Posts: 389
Likes: 0
From: Micco FL
Default Re: Blinking light on my AC controls (Oldman)

"Push and hold the fan "up" arrow and fan "down" arrow at the same time for 5 seconds.
The LCD will show "00". Push "AUTO FAN" and the LCD will show any fault DTCs stored:
09=low freon, etc. If there are other codes, post them, and I will help you."
:withstupid:

Keep in mind there are a couple of dozen different codes/channels to get to. Need to know what it says.
Reply

Get notified of new replies

To Blinking light on my AC controls





All times are GMT -4. The time now is 04:43 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE